This prospective study describes a series of 18 olecranon fractures in 16 horses two because of severe infection and one compression plate osteosynthesis. View this abstract online treatment of type 2 and 4 olecranon fractures with locking compression plate osteosynthesis in horses: a prospective study (2002-2008. Plate osteosynthesis of proximal ulna fractures—a biomechanical micromotion analysis of a mayo type iia fracture of the olecranon, osteosynthesis was. Hypothesis using radiologic and clinical results, we studied the outcome of patients who underwent open reduction and plate osteosynthesis for comminuted olecranon.